Journal ArticleDOI
Role of calcium sources in the strength and microstructure of microbial mortar
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TLDR
In this paper, the uniaxial compressive strength, splitting tensile strength and water absorption ratio of microbial mortars treated with three different calcium sources (CaCl2, Ca(CH3COO)2 and Ca(NO3)2) were investigated.About:
This article is published in Construction and Building Materials.The article was published on 2015-02-15. It has received 123 citations till now. The article focuses on the topics: Calcium carbonate & Vaterite.read more
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Bacteria based self healing concrete – A review
TL;DR: In this article, the authors reviewed the types of bacteria used in concrete and the ways it can be applied as a healing agents and gave a brief description of the various properties of concrete which vary with the addition of bacteria.
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Properties of bacterial rice husk ash concrete
TL;DR: In this article, the influence of bacteria on the properties of concrete made with rice husk ash (RHA) is presented in the context of making concrete with and without bacteria.
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Influence of bacteria on compressive strength and permeation properties of concrete made with cement baghouse filter dust
TL;DR: In this paper, the influence of baghouse filter dust (CBFD) in control and bacterial concrete, as partial replacement of ordinary Portland cement (0, 10, 20% and 30%) on compressive strength, water absorption, porosity, chloride permeability and sorptivity at 28 and 56 days of curing was investigated.
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Effect of bacteria on strength, permeation characteristics and micro-structure of silica fume concrete
Rafat Siddique,Abir Jameel,Malkit Singh,Danuta Barnat-Hunek,Kunal,Abdelkarim Aït-Mokhtar,Rafik Belarbi,Anita Rajor +7 more
TL;DR: In this article, the authors investigated the influence of bacteria on strength and permeation characteristics of concrete incorporating silica fume (SF) as a substitution of cement and found that 10% SF concrete with constant concentration of bacterial culture increased the compressive strength of concrete by nearly 10% compared to non-bacterial concrete.
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Optimum rice husk ash content and bacterial concentration in self-compacting concrete
TL;DR: In this article, the authors aimed at optimizing the rice husk ash (RHA) content and bacterial concentration in self-compacting concrete (SCC) to reduce the formation of micro-cracks.
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Microbial Carbonate Precipitation as a Soil Improvement Technique
TL;DR: In this article, a five meter sand column was treated with bacteria and reagents under conditions that were realistic for field applications, and the column was subjected to mechanical testing, which indicated a significant improvement of strength and stiffness over several meters.
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Microbially Induced Cementation to Control Sand Response to Undrained Shear
Jason T. DeJong,Jason T. DeJong,Michael B. Fritzges,Michael B. Fritzges,Klaus Nüsslein,Klaus Nüsslein +5 more
TL;DR: In this article, the results of a study in which natural microbial biological processes were used to engineer a cemented soil matrix within initially loose, collapsible sand were presented, using the microorganism Bacillus pasteurii, an aerobic bacterium pervasive in natural soil deposits.
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Microbial carbonate precipitation in construction materials: A review
TL;DR: In this paper, the use of microbially induced carbonates as a binder material, i.e., biocementation, is discussed, for the improvement of compressive strength and the remediation of cracks.
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Quantification of crack-healing in novel bacteria-based self-healing concrete
Virginie Wiktor,Henk M. Jonkers +1 more
TL;DR: In this article, a two-component bio-chemical self-healing agent consisting of bacterial spores and calcium lactate is released from the particle by crack ingress water, which results in physical closure of micro cracks.
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Use of bacteria to repair cracks in concrete
TL;DR: In this paper, the use of a biological repair technique is investigated in concrete repair by means of water permeability tests, ultrasound transmission measurements and visual examination, and it was shown that pure bacteria cultures were not able to bridge the cracks.